h1 {
  padding: 60px 0 30px;
  font-size: 2em;
  text-align: center;
  text-transform: uppercase;
}

th {
  font-weight: 700;
}

iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 100vh;
  border: 0;
}

code {
  font-size: 85%;
  font-family: 'Courier New', Courier, monospace;
  color: #009688;
  word-break: break-word;
}

a {
  color: currentColor;
  border-bottom: 1px dashed currentColor;
}

a:hover {
  opacity: .8;
  color: inherit;
  border-bottom-style: solid;
}


.layui-fluid {
  margin: 0 auto;
  max-width: 998px;
}

.layui-card {
  margin: 30px 0 20px;
}

.title {
  font-size: 20px;
  font-weight: 300;
  position: sticky;
  top: 0;
  z-index: 1;
  background: #fff;
}

.layui-code {
  margin: 30px 20px 10px;
}